Infigen Energy
Former Australian developer, owner and operator of renewable electricity generation assets, now operating under the Iberdrola Australia brand.
Last updated August 26, 2026
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Overview
Infigen Energy was an Australian renewable-energy generation company that developed, owned and operated wind, solar and related electricity assets. Its business evolved from Babcock & Brown Wind Partners, an investment and operating platform established around wind generation, into one of the more substantial renewable-energy owners in Australia. The company was listed on the Australian Securities Exchange in October 2005 under the code BBW, initially with three wind farms representing approximately 150 megawatts of installed capacity. By 2007, its portfolio had expanded to 33 wind farms and approximately 1,200 megawatts, making it a major wind-power owner internationally and one of the largest suppliers of wind electricity in Australia at that time. The company separated from the troubled Babcock & Brown group and adopted the Infigen Energy name in 2009. Under the Infigen identity, its activities broadened beyond a pure wind-farm ownership model. The business developed and operated renewable generation assets, supplied electricity and renewable-energy products, and participated in Australia's National Electricity Market as well as the South West Interconnected System in Western Australia. Its asset base came to include wind farms, solar farms, battery storage and fast-start firming assets. The portfolio served customers in New South Wales, Victoria, Queensland, South Australia and Western Australia, while its wind farms were accredited by the GreenPower program. Infigen also used public engagement and climate initiatives to support its corporate positioning. From 2012 it held the Run with the Wind community event at the Woodlawn Wind Farm, with later editions supported by the Greater Western Sydney Giants and proceeds directed to charity. In 2013 it worked with turbine manufacturer Vestas on the Act on Facts wind-energy campaign. In 2015 it joined the Carbon Disclosure Project's Road to Paris commitments, associated with the We Mean Business coalition, and participated in Australia's CitySwitch Green Office program. The company's leadership changed during the later years of its independent operation. Miles George, managing director and chief executive from 2009, announced his retirement in 2016 and was succeeded by Ross Rolfe. Len Gill became chairman in 2017 after Mike Hutchinson retired from that role. In 2020, Infigen became the subject of competing takeover activity. UAC Energy pursued an after-market offer through Credit Suisse, while Spanish utility Iberdrola made a competing proposal. Iberdrola ultimately prevailed, with UAC transferring its stake to Iberdrola on 9 September 2020. The transition away from the Infigen brand was announced in June 2020 and implemented in December of that year. On 1 June 2021, the company was renamed Iberdrola Australia. Consequently, Infigen Energy is best understood as a former corporate brand and listed company rather than a currently independent operating business. The successor business retained and expanded the Australian renewable-generation platform. The successor's reported portfolio reached 2.4 gigawatts of total capacity in May 2024 and included wind, solar, batteries and firming assets. Iberdrola Australia has stated goals including net-zero carbon emissions by 2040 and net-positive biodiversity by 2030.
History
Infigen Energy originated as Babcock & Brown Wind Partners, a wind-generation investment and operating platform associated with the Babcock & Brown group. It entered the Australian Securities Exchange in October 2005 under the code BBW. At listing, the portfolio contained three wind farms with approximately 150 megawatts of installed capacity. The company expanded quickly: by 2007 it reportedly controlled interests in 33 wind farms with around 1,200 megawatts of capacity, positioning it among the world's largest wind-farm owners and as Australia's largest wind-power supplier at that time. The collapse and restructuring difficulties surrounding Babcock & Brown led the wind business to establish a more independent identity. In 2009 it changed its name to Infigen Energy and traded under the ASX code IFN. The company continued to focus on renewable electricity generation while developing a broader portfolio and operating model. Its assets and activities came to encompass wind farms, solar projects, battery storage and fast-start firming resources. The company participated in the National Electricity Market across eastern and southern Australia and maintained a presence in Western Australia's South West Interconnected System. Its customers were located in New South Wales, Victoria, Queensland, South Australia and Western Australia. Community engagement formed part of the Infigen identity. In 2012 the company held the first Run with the Wind event at its Woodlawn Wind Farm. The event was repeated in subsequent years through 2018, and the 2013 edition received support from the Greater Western Sydney Giants. Olympian runner Martin Dent won the first two races, while event proceeds were donated to charity. In 2013 Infigen and Vestas collaborated on Act on Facts, a campaign intended to promote public understanding of wind energy. Infigen also joined climate and sustainability initiatives in 2015, including the Carbon Disclosure Project's Road to Paris commitments, linked to the We Mean Business coalition, and the CitySwitch Green Office program in Australia. Leadership succession accompanied the company's later independent period. Miles George served as managing director and chief executive from 2009 until his announced retirement after the November 2016 annual general meeting. Ross Rolfe was selected as his successor. In 2017, chairman Mike Hutchinson retired and non-executive director Len Gill became chairman. In 2020 the company entered a takeover contest. UAC Energy launched an after-market offer through Credit Suisse, while Iberdrola S.A. made a competing bid. Iberdrola ultimately acquired control, with UAC transferring its stake to Iberdrola on 9 September 2020. Infigen announced a transition to the Iberdrola Australia brand in June 2020, and the public-facing transition took place in December. The company was renamed Iberdrola Australia on 1 June 2021. The Infigen name therefore represents the historical independent phase of an Australian renewable-energy platform that continues under Iberdrola ownership. The successor business reported 2.4 gigawatts of total capacity in May 2024 and operates a portfolio including wind, solar, batteries and firming assets. Iberdrola Australia has stated objectives of net-zero carbon emissions by 2040 and net-positive biodiversity by 2030.
- 2021
Renamed Iberdrola Australia
[1]The company formally adopted the Iberdrola Australia name on 1 June 2021.
- 2020
Acquired by Iberdrola
[1]After competing offers from UAC Energy and Iberdrola, Iberdrola secured control of Infigen.
- 2017
Chairmanship changes
[1]Len Gill succeeded Mike Hutchinson as chairman.
- 2016
Chief executive succession announced
[1]Miles George announced his retirement and Ross Rolfe was appointed to succeed him as managing director and chief executive.
- 2012
First Run with the Wind event
[1]Infigen held its first community fun run at Woodlawn Wind Farm, beginning a series that continued through 2018.
- 2009
Adopts the Infigen Energy name
[1]The company changed its name from Babcock & Brown Wind Partners and began trading under IFN.
- 2007
Wind portfolio reaches approximately 1,200 megawatts
[1]The portfolio expanded to 33 wind farms, making the business a major international wind-farm owner and Australia's largest wind-power supplier at the time.
- 2005
Listed on the Australian Securities Exchange
[1]Babcock & Brown Wind Partners listed on the ASX under BBW with three wind farms and approximately 150 megawatts of installed capacity.
Products and positioning
Renewable electricity generation and infrastructure ownership
Renewable electricity generation
Wind generation
Wind power was the company's original and defining business. Infigen developed, owned and operated a large portfolio of Australian wind farms and supplied electricity generated by those assets. Its wind facilities were accredited by the GreenPower program, supporting the sale or contracting of renewable electricity to customers seeking certified renewable supply.
Renewable electricity generation
Solar generation
Solar generation became part of the broader renewable portfolio as the business diversified beyond wind. Solar assets complemented wind production and could be combined with other generation and storage resources to provide a more flexible supply profile in Australia's electricity markets.
Energy storage and grid services
Battery storage and firming assets
The platform also included batteries and fast-start firming assets. These resources were intended to complement variable renewable generation by providing dispatchable capacity and flexibility for electricity-market operations. The assets formed part of the operating portfolio inherited by Iberdrola Australia.
Marketing campaigns
- 2015Road to Paris climate commitments
Australia · International
Infigen joined the Carbon Disclosure Project's Road to Paris commitments, associated with the We Mean Business coalition.
- 2015CitySwitch Green Office
Australia
Infigen joined Australia's CitySwitch Green Office program, a collaboration involving businesses and governments to encourage lower-impact office operations and climate action.
- 2013Act on Facts
Australia
Infigen collaborated with Danish wind-turbine manufacturer Vestas on a public campaign focused on facts and information about wind energy.
- 2012Run with the Wind
Australia
A community fun-run series hosted at Woodlawn Wind Farm. Later editions were held from 2013 through 2018, with the 2013 event supported by the Greater Western Sydney Giants.
Outcome. The events continued for several years, and proceeds were donated to charity.
Brand decisions
2021
Complete the Iberdrola Australia rebrandStrategyBackground
Following Iberdrola's acquisition and the brand transition announced in 2020, the business required a new corporate identity.
Action taken
The company was renamed Iberdrola Australia on 1 June 2021.
Aftermath
The Infigen corporate brand ceased to be the operating identity, while the Australian renewable-energy portfolio continued under Iberdrola.
2020
Accept Iberdrola's takeoverM&ABackground
Infigen became the subject of competing takeover activity from UAC Energy and Iberdrola.
Action taken
Iberdrola's offer prevailed, and UAC Energy transferred its stake to Iberdrola on 9 September 2020.
Aftermath
Infigen entered the Iberdrola group and began transitioning to the Iberdrola Australia identity.
- UAC Energy — UAC Energy pursued a competing after-market takeover bid through Credit Suisse before transferring its stake to Iberdrola.
2009
Separate the renewable platform from the Babcock & Brown identityStrategyBackground
The wind business operated against the backdrop of difficulties affecting its former parent group.
Action taken
The company changed its name from Babcock & Brown Wind Partners to Infigen Energy and adopted the IFN trading code.
Aftermath
Infigen operated as an independently branded renewable-energy company until its acquisition by Iberdrola in 2020.
Recent events
Infigen rebranding completed as Iberdrola Australia[2]
Reported:
Iberdrola completed the rebranding of Infigen Energy, which became known locally as Iberdrola Australia.
Sources2 sources
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